When comparing StealthChat vs Google Allo, the Slant community recommends Google Allo for most people. In the question“What are the best messaging apps for Android?”Google Allo is ranked 13th while StealthChat is ranked 18th. The most important reason people chose Google Allo is:

Automatically shows options for restaurants/movies/etc when relevant according to the context of the conversation. It's also able to perform actions accordingly like order tickets.

Pros

Pro

Can send self-destructing messages

Messages can be set to self-destruct after a set time.

Pro

Offers 3 types of encryption

The app claims to be the only communication app that encrypts data in transit, on disk and on screen. Encryption in transit is used to make sure no-one can listen in on your conversations even if the traffic is going through their servers, encryption on disk is used to make sure that even if someone gets ahold of your phone and is capable of extracting your messages from it they won't be able to read them and screen encryption is essentially a lock screen that sets in after a set amount of time used to make prevent "shoulder surfing".

Pro

Integrated with Google Assistant

Automatically shows options for restaurants/movies/etc when relevant according to the context of the conversation. It's also able to perform actions accordingly like order tickets.

Pro

Supports end to end encryption

You can send end to end encrypted message that will auto-delete themselves after a specified time.

Pro

whisper SHOUT let's you express yourself through text size

You can easily adjust the text size to show either a whisper or a shout, adding emphasis to your messages. Simply hold the send button and slide up (to shout) or down (to whisper).

Pro

Message can self-destruct after a certain time

You can send end to end encrypted message that will auto-delete themselves after a specified time.

Pro

Animated stickers and emoji

Some shouted emoji animate and you can download additional stickers and send animated stickers.

Pro

Full resolution picture sharing

Pro

Smart replies

Part of the Google Assistant is providing common answers based on your conversation thread (like in Gmail/Inbox).

Pro

Themes

Each chat's theme can be changed to one of a few themes. Some themes even have specific chat colours for each user, making it easy to see who is talking.

Pro

Can share a location

Share your current location or any place with other people.

Pro

Encryption on-the-wire and in cloud storage

All messages are encrypted while in transit and on Google's servers.

Pro

File sharing

Ad

Cons

Con

Code is not verified

Con

Poor support

Con

Lacks group chat

Con

Closed source

No way to verify security practices.

Con

Many people have difficulty registering the app

Multiple people have reported not being able to receive the activation code required to register the app.

Con

Few users currently

Allo was just released in September, 2016 and it doesn't have a very large following yet. We haven't yet seen how popular it's going to be.

Con

Exclusive

If your contacts aren't on Allo it is worthless, and no one is on Allo. Tried it after Hangouts fail, discarded it within days.

Con

No web interface (yet)

Currently there is no web interface to send message using your computer. Project leads have teased screen shots of the web interface.

Con

Single device

Part of reliably saying if one saw your message, and having it tied to a phone number, is that you cannot have the same Allo account on two phones.

Con

History deletes on sign in

If you uninstall the app or migrate to a new phone your messages history is deleted. This, despite the fact that Google keeps a copy of your messages permanently for data crunching.

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